package com.gxuwz.medical.dao;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import com.gxuwz.medical.database.DBUtil;
import com.gxuwz.medical.domain.area.Area;
import com.gxuwz.medical.domain.institution.Institution;
import com.gxuwz.medical.domain.vo.Page;
/**
 * 农合机构管理dao类
 * @author 沉羽墨玖
 *
 */
public class InstitutionDao extends BaseDao {
	private static final String SQL_SELECT_AREACODE = "select * from institution where areacode=?";

	@Override
	protected Institution handle(ResultSet rs) throws Exception {
		String areacode = rs.getString("areacode");
		String agencode = rs.getString("agencode");
		String agenName = rs.getString("agenName");
		int grade = rs.getInt("grade");
		String name = rs.getString("name");
		Area area = new Area(areacode);
		Institution entity = new Institution(area, agencode, agenName, grade,name);
		return entity;
	}

	/**
	 * 查找对应的农合机构记录并转为对象实例
	 * 
	 * @param areacode
	 * @return
	 * @throws Exception
	 */
	public Institution get(String areacode) throws Exception {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		try {
			conn = DBUtil.getConn();
			pstmt = conn.prepareStatement(SQL_SELECT_AREACODE);
			int index = 1;
			pstmt.setString(index, areacode);
			rs = pstmt.executeQuery();
			return handle(rs);
		} catch (SQLException e) {
			throw new SQLException("读取areacode记录失败", e);
		}
	}

	/**
	 * @param sql
	 * @param params
	 * @return
	 * @throws Exception
	 */
	public List<Institution> queryObjects(String sql, Object[] params)
			throws Exception {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		List<Institution> results = new ArrayList<Institution>();
		try {
			conn = DBUtil.getConn();
			pstmt = conn.prepareStatement(sql);
			int index = 1;
			if (params != null) {
				for (Object param : params) {
					if (param instanceof String) {
						pstmt.setString(index++, (String) param);
					}
					if (param instanceof Integer) {
						pstmt.setInt(index++, (Integer) param);
					}
					if (param instanceof Float) {
						pstmt.setFloat(index++, (Float) param);
					}
				}

			}
			rs = pstmt.executeQuery();
			while (rs.next()) {
				Institution institution = handle(rs);
				results.add(institution);
			}
			return results;
		} catch (SQLException e) {
			throw new SQLException("执行SQL[" + sql + "]失败", e);
		}
	}

	/**
	 * 分页
	 * 
	 * @param select
	 *            * from institution where areacode=?
	 * @param params
	 * @param page
	 * @param size
	 * @return
	 * @throws Exception
	 */
	public Page queryOjectsByPage(String sql, Object[] params, int pageNo,
			int size) throws Exception {
		Connection conn = null;
		PreparedStatement pstmt = null;
		ResultSet rs = null;
		Page page = null;
		List<Institution> datas = new ArrayList<Institution>();
		try {
			int start = (pageNo - 1) * size;
			conn = DBUtil.getConn();
			pstmt = conn.prepareStatement(sql + " limit " + start + "," + size);
			int index = 1;
			if (params != null) {
				for (Object param : params) {
					if (param instanceof String) {
						pstmt.setString(index++, (String) param);
					}
					if (param instanceof Integer) {
						pstmt.setInt(index++, (Integer) param);
					}
					if (param instanceof Float) {
						pstmt.setFloat(index++, (Float) param);
					}
				}
			}
			rs = pstmt.executeQuery();
			while (rs.next()) {
				Institution institution = handle(rs);
				datas.add(institution);
			}
			// 统计SQL对应记录数
			int total = count(sql, params);
			page = new Page(total, pageNo, size, datas);
			return page;
		} catch (SQLException e) {
			throw new SQLException("执行SQL[" + sql + "]失败", e);
		}

	}
}
